CN102901612B - All-angle and distance-adjustable non-contact excitation experiment platform - Google Patents
All-angle and distance-adjustable non-contact excitation experiment platform Download PDFInfo
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- CN102901612B CN102901612B CN201210424617.7A CN201210424617A CN102901612B CN 102901612 B CN102901612 B CN 102901612B CN 201210424617 A CN201210424617 A CN 201210424617A CN 102901612 B CN102901612 B CN 102901612B
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Abstract
The invention provides an all-angle and distance-adjustable non-contact excitation experiment platform, which comprises a base, an angle adjusting device, a connecting plate, a displacement adjusting device, a locating plate and a non-contact exciter. The connecting plate is movably mounted on the angle adjusting device; the displacement adjusting device is mounted on the connecting plate; and the non-contact exciter is mounted on the displacement adjusting device by the locating plate. According to the invention, the distance and the angle of the non-contact exciter are adjusted; according to the position of an excited part, the direction of the non-contact exciter is first adjusted and then the distance between the non-contact exciter and the excited part is adjusted, so that an optimal experiment effect is achieved, the authenticity and accuracy of experiment data are enhanced and scientific research and experimental requirements are satisfied.
Description
Technical field
The present invention relates to a kind of experimental provision, especially a kind of full angle and distance adjustable non-contact exciting experiment porch.
Background technology
Mechanical system vibration experiment platform is used for analog mechanical parts at the residing environment of practical work process, it comprises vibration-resistant property test, failtests, vibration simulation analysis, fatigue experiment, material behavior test, fault diagnosis and life prediction etc. to all kinds of plant equipment for many scientific experiments field.The at present commercially available and existing shaking table major part of all kinds of scientific research institutions is contact shaking table, the excitational equipment of this class experiment porch conventionally need to transmission lever be energized parts and contact to transmit accumulation signal, therefore, this class experiment porch is mainly applicable to fixed part to carry out exciting experiment, is difficult to moving component directly to carry out exciting experiment.
Non-contact exciting experiment porch is by regulating the size of electric current, changes the size in magnetic field, and then changes and be energized the magnetic field force induced size of parts, is energized parts and vibrates under the magnetic field force effect varying in size.At present, in carry out the existing noncontact vibration test platform of exciting experiment for moving component, mainly there is following problem: contactless vibrator is fixed installation, its installation site cannot change flexibly according to the position of moving component, so causes vibrator and the distance that is energized between parts cannot accurately regulate.When vibrator is when being energized the hypotelorism of parts, easily cause vibrator to be directly adsorbed on and be energized on parts, cause exciting experiment to interrupt, when vibrator and while being energized the hypertelorism between parts, be energized the accumulation signal that parts receive poor, exciting DeGrain.Above-mentioned two situations all can affect authenticity and the accuracy of experimental data, make experimenter obtain correct experimental result according to experimental data.The fixed installation form of contactless vibrator only can be carried out the experiment of one direction exciting to being energized parts, cannot carry out the experiment of full angle exciting, and the experimental data obtaining is single, can not meet scientific research demand.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of full angle and distance adjustable non-contact exciting experiment porch, during experiment, according to the position that is excited parts, regulate, and can carry out the experiment of full angle exciting to being energized parts.
The technical scheme that the present invention takes is:
Full angle and distance adjustable non-contact exciting experiment porch, comprise base, angle regulator, web joint, displacement adjustment device, location-plate and contactless vibrator.Web joint is movable to be arranged on angle regulator, and displacement adjustment device is arranged on web joint, and contactless vibrator is arranged on displacement adjustment device by location-plate.
As preferably, displacement adjustment device comprises fixed block, movable block and screw mandrel, fixed block is fixedly mounted on web joint, fixed block is provided with groove in the direction perpendicular to web joint, movable block is provided with a square nut coordinating with screw mandrel, square nut is placed in the groove of fixed block along groove inwall moving linearly, and screw mandrel is installed through fixed block and square nut.
As preferably, location-plate is fixedly mounted on movable block.
As preferably, angle regulator comprises rotary disk basement, index dial, clamping disk(-sc), set bolt and fishbolt.Rotary disk basement is fixedly mounted on base by set bolt; It is circular that index dial is, and its internal diameter is greater than the diameter of clamping disk(-sc), and index dial and clamping disk(-sc) are fixedly mounted on rotary disk basement, both axis coincidings; Space between index dial and clamping disk(-sc) forms circuit orbit.
As preferably, web joint is arranged on angle regulator by fishbolt, and one end inlay card of fishbolt is in circuit orbit.
As preferably, on base, be also provided with the supporting seat that is energized parts for installing.
The invention has the beneficial effects as follows:
1, the present invention adopts contactless vibrator to replace traditional contact vibrator, and accumulation signal does not need to transmit by transmission lever, can not only carry out exciting experiment to static parts, also can carry out exciting experiment to the parts of motion.
2, angle regulator of the present invention can regulate according to the position that is excited parts contactless vibrator, and can carry out the experiment of full angle exciting to being excited parts, meets experiment, scientific research requirement.
3, displacement adjustment device of the present invention can regulate according to the position that is excited parts, avoids contactless vibrator and is excited distance between parts because crossing far away or crossing accuracy and the authenticity that recent photo rings experimental data.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention one-piece construction schematic diagram;
Fig. 2 is embodiment of the present invention angle regulator schematic diagram;
Fig. 3 is embodiment of the present invention displacement adjustment device schematic diagram;
Schematic diagram when Fig. 4 is embodiment of the present invention application.
In figure, 1-base, 2-angle regulator, 21-rotary disk basement, 22-index dial, 23-clamping disk(-sc), 24-circuit orbit, 25-set bolt, 26-fishbolt, 3-web joint, 4-displacement adjustment device, 41-fixed block, 411-groove, 42-movable block, 421-square nut, 43-screw mandrel, 5-location-plate, the contactless vibrator of 6-, 7-is energized parts, 8-transmission shaft, 9-supporting seat, the follow-up drive apparatus of 10-.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As figure, full angle and distance adjustable non-contact exciting experiment porch, comprise base 1, angle regulator 2, web joint 3, displacement adjustment device 4, location-plate 5 and contactless vibrator 6.
Angle regulator 2 comprises rotary disk basement 21, index dial 22, clamping disk(-sc) 23, set bolt 25 and fishbolt 26, rotary disk basement 21 is fixed on base by set bolt 25, index dial 22 is fixedly mounted on rotary disk basement 21, and clamping disk(-sc) 23 is also fixedly installed on rotary disk basement 21.Index dial 22 is circular, and its internal diameter is greater than the diameter of clamping disk(-sc), and the space that index dial 22 and clamping disk(-sc) are 23 forms circuit orbit 24.Web joint 3 is arranged on displacement adjustment device 2 by fishbolt 26 is movable, and one end inlay card of fishbolt is in circuit orbit, and when fishbolt unclamps, web joint is rotatable, goes to after the direction needing, and clamps fishbolt, fixed connecting plate.
Displacement adjustment device 4 comprises fixed block 41, movable block 42 and screw mandrel 43, fixed block 41 is provided with groove 411, movable block 42 is provided with a square nut 421, square nut is placed in to groove 411, square nut is along groove inwall moving linearly, and screw mandrel 43 is assembled through fixed block and square nut.Fixed block 41 is fixedly mounted on web joint 3, and contactless vibrator 6 is fixedly mounted on movable block 42 by location-plate 5.Screw mandrel 43 rotationals drive movable block 42 motions, thereby drive, by location-plate contactless vibrator 6 mounted thereto, move.
In the present embodiment, while testing, experiment package is arranged on experiment table, transmission shaft 8 is arranged on supporting seat 9, and one end of transmission shaft 8 is installed and is energized parts 7, and the other end and follow-up drive apparatus 10 are installed.According to the position that is energized parts, unclamp fishbolt 26, be rotationally connected plate 3 to the normal direction of contactless vibrator 6 end faces with to be excited the required direction of excitation of parts consistent, the angle of observing rotation by index dial 22, tightens fishbolt 26 after determining direction.Like this, displacement adjustment device 2 also rotates with the rotation of web joint 3 thereupon, and the direction that is fixed on the contactless vibrator 6 on displacement adjustment device is also determined thereupon.
Determine after the direction of contactless vibrator 6, with spanner or its instrument, screw mandrel 43 is rotated again, screw mandrel 43 rotarily drives movable block 42 and moves in the groove 411 of fixed block 41, movable block 42 drives and moves by location-plate 5 contactless vibrator 6 mounted thereto, and rotary screw rod makes contactless vibrator 6 and is energized distance between parts for roughly suitable.In the present embodiment, contactless vibrator provides face exciting, and its exciting area is that Radius is the circle of 10mm, and when the area that is energized parts 7 is enough large, the face exciting that contactless vibrator provides can be similar to regards an exciting as.
Determining behind the position of contactless vibrator 6 according to the orientation that is energized parts 7, connect the operating circuit of contactless vibrator 6.The principle of work of contactless vibrator 6 operating circuits as shown in the figure, by related software, write the signal function for exciting on computers, this signal function is input in signal generator, signal generator produces corresponding signal according to the signal function of input, experimenter can check on the display screen of signal generator that whether some basic parameters of signal are correct, confirm after errorless again this signal to be input in power amplifier, signal is just input in the contactless vibrator 6 of the embodiment of the present invention through after power amplification, contactless vibrator receives accumulation signal and just to being energized parts 7, carries out exciting experiment.
Under exciting state, finely tune contactless vibrator 6 and be excited the distance of 7 of parts, making is optimum distance between the two, makes experiment effect reach best.The screw mandrel of this experiment porch has auto-lock function, makes in exciting experimentation, to there will not be the situation of play after its location positioning, guarantees contactless vibrator 6 and be excited the distance of 7 of parts constant.Meanwhile, each device of experiment porch forms by the high materials processing of rigidity, avoids each device when exciting is tested, to produce coupled vibrations.
In the present embodiment, transmission shaft 8 is installed by supporting seat 9, is energized one end that parts 7 are arranged on transmission shaft 8, and the other end of transmission shaft 8 is connected with follow-up drive apparatus 10.During experiment, follow-up drive apparatus 10 is driven and is energized parts 7 rotations by transmission shaft 8, meanwhile, is energized parts 7 and is subject to the exciting of contactless vibrator 6 to it, and transmission shaft can pass to follow up device by vibration again.This experiment porch can the motion state of skimulated motion parts when practical application obtain experimental data, and data are carried out analysis and modification to moving component by experiment, make it meet user demand or reach higher standard.
The embodiment of the present invention can regulate the direction of contactless vibrator and distance between the two according to the orientation that is energized parts, achieves best experiment distance, improves authenticity and the accuracy of experimental data, obtains correct experimental result.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (5)
1. full angle and distance adjustable non-contact exciting experiment porch, is characterized in that: comprise base (1), angle regulator (2), web joint (3), displacement adjustment device (4), location-plate (5) and contactless vibrator (6); Described web joint (3) is movable to be arranged on angle regulator, and it is upper that displacement adjustment device (4) is arranged on web joint (3), and contactless vibrator (6) is arranged on displacement adjustment device by location-plate (5); Described angle regulator (2) comprises rotary disk basement (21), index dial (22), clamping disk(-sc) (23), set bolt (25) and fishbolt (26), and described rotary disk basement (21) is fixedly mounted on base (1) by set bolt (25); Described index dial (22) is circular, and its internal diameter is greater than the diameter of clamping disk(-sc) (23), and it is upper that index dial and clamping disk(-sc) are fixedly mounted on rotary disk basement (21), both axis coincidings; Circular void between index dial and clamping disk(-sc) forms circuit orbit (24).
2. full angle according to claim 1 and distance adjustable non-contact exciting experiment porch, it is characterized in that: described displacement adjustment device (4) comprises fixed block (41), movable block (42) and screw mandrel (43), fixed block is fixedly mounted on web joint (3), fixed block is provided with groove (411) in the direction perpendicular to web joint, movable block is provided with a square nut (421) coordinating with screw mandrel, square nut (421) is placed in the groove (411) of fixed block along groove inwall moving linearly, screw mandrel (43) is installed through fixed block and square nut.
3. full angle according to claim 2 and distance adjustable non-contact exciting experiment porch, is characterized in that: described location-plate (5) is fixedly mounted on movable block (42).
4. full angle according to claim 3 and distance adjustable non-contact exciting experiment porch, it is characterized in that: described web joint (3) is arranged on angle regulator (2) above by fishbolt (26) is movable, and one end inlay card of fishbolt is in circuit orbit (24).
5. full angle according to claim 1 and distance adjustable non-contact exciting experiment porch, is characterized in that: on base (1), be also provided with the supporting seat (9) that is energized parts for installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210424617.7A CN102901612B (en) | 2012-10-30 | 2012-10-30 | All-angle and distance-adjustable non-contact excitation experiment platform |
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| CN201210424617.7A CN102901612B (en) | 2012-10-30 | 2012-10-30 | All-angle and distance-adjustable non-contact excitation experiment platform |
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| CN102901612B true CN102901612B (en) | 2014-11-26 |
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Families Citing this family (6)
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| CN103939296A (en) * | 2014-04-17 | 2014-07-23 | 浙江大学 | Offshore wind turbine simulation experiment device |
| CN104535283A (en) * | 2014-12-25 | 2015-04-22 | 温州职业技术学院 | Precise electronically-controlled non-contact excitation experimental platform |
| CN106033221B (en) * | 2015-03-19 | 2019-05-31 | 福建宁德核电有限公司 | A kind of Vibratory transducer calibration system and its angle adjustment device and method |
| CN105149844B (en) * | 2015-09-23 | 2017-01-25 | 北京石油化工学院 | Fixture device for welding experiment |
| US9863839B2 (en) * | 2015-11-18 | 2018-01-09 | The Boeing Company | Positioner for electrodynamic shaker |
| CN111579748A (en) * | 2020-06-24 | 2020-08-25 | 大连理工大学 | Metal material performance parameter measuring device and method |
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| US3871210A (en) * | 1971-11-12 | 1975-03-18 | Hofmann Maschf Geb | Vibration testing apparatus with preload control |
| CN1043642A (en) * | 1989-12-24 | 1990-07-11 | 南京航空学院 | Chock-exciting method of electric eddy-magnetic push-pull and vibrator |
| CN1924536A (en) * | 2005-09-02 | 2007-03-07 | 鸿富锦精密工业（深圳）有限公司 | Vibration measurement and monitoring system |
| CN101221065A (en) * | 2007-12-16 | 2008-07-16 | 张蔚波 | Vibration teaching table capable of implementing non-contact exciting distance fine regulation and vibration active control |
| CN101599339A (en) * | 2009-04-22 | 2009-12-09 | 南京航空航天大学 | Permanent magnet type non-contact vibration exciter and excitation method thereof |
| CN101936802A (en) * | 2010-07-27 | 2011-01-05 | 南昌大学 | New structural shock excitation experimental device |
| CN201819786U (en) * | 2010-07-27 | 2011-05-04 | 南昌大学 | Novel device for structural excitation test |
| CN102175412A (en) * | 2011-03-10 | 2011-09-07 | 上海交通大学 | Rotor torsion oscillation testing device and testing method thereof |
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- 2012-10-30 CN CN201210424617.7A patent/CN102901612B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3871210A (en) * | 1971-11-12 | 1975-03-18 | Hofmann Maschf Geb | Vibration testing apparatus with preload control |
| CN1043642A (en) * | 1989-12-24 | 1990-07-11 | 南京航空学院 | Chock-exciting method of electric eddy-magnetic push-pull and vibrator |
| CN1924536A (en) * | 2005-09-02 | 2007-03-07 | 鸿富锦精密工业（深圳）有限公司 | Vibration measurement and monitoring system |
| CN101221065A (en) * | 2007-12-16 | 2008-07-16 | 张蔚波 | Vibration teaching table capable of implementing non-contact exciting distance fine regulation and vibration active control |
| CN101599339A (en) * | 2009-04-22 | 2009-12-09 | 南京航空航天大学 | Permanent magnet type non-contact vibration exciter and excitation method thereof |
| CN101936802A (en) * | 2010-07-27 | 2011-01-05 | 南昌大学 | New structural shock excitation experimental device |
| CN201819786U (en) * | 2010-07-27 | 2011-05-04 | 南昌大学 | Novel device for structural excitation test |
| CN102175412A (en) * | 2011-03-10 | 2011-09-07 | 上海交通大学 | Rotor torsion oscillation testing device and testing method thereof |
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